HICO level 2 processing

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HICO level 2 processing

by obdaac_forum_user » Wed Jun 11, 2014 1:32 pm America/New_York

Thank you Jasmine,

Are you aware of any SEADAS chlor-a algorithm that would be "best" suited for retrieving the product from HICO data in inland waters, e.g. a lake, or is all this at experimental stages?

Regards,
R

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HICO level 2 processing

by jasmine » Wed Jun 11, 2014 1:51 pm America/New_York

Robin,

I'm not familiar enough with inland waters to recommend a specific seadas chl routine (and it likely depends on your lake).  However, there are numerous HICO projects underway that are specific to inland water bodies (mostly focusing on water quality).  You will find that they all take different approaches, trying to take advantage of the hyperspectral nature of HICO.  A list of known projects can be found on the HICO website projects page.  Some of the projects have provided annual reports (found at the links labelled 2012_AR or 2014_AR) which may have helpful details of implementation and publications.

http://hico.coas.oregonstate.edu/projects/projects.shtml

Jasmine.

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HICO level 2 processing

by obdaac_forum_user » Mon Jul 21, 2014 1:14 pm America/New_York

Does the level2 processing chain implement a vicarious calibration on HICO scenes?

Christophe

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HICO level 2 processing

by OB.DAAC - SeanBailey » Mon Jul 21, 2014 6:33 pm America/New_York

Christophe,

No, not yet anyway.  We do not produce L2 files from HICO operationally, in part because we've not had time to assess the calibration.
Eventually, we will, but for now the gains are set to unity.

Regards,
Sean

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HICO level 2 processing

by obdaac_forum_user » Tue May 26, 2015 9:16 am America/New_York

Dear Sean,

is SeaDAS processor now able to handle hyperspectral atmospheric correction and therefore generate hyperspectral marine reflectances?

Regards

Christophe

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HICO level 2 processing

by OB.DAAC - SeanBailey » Tue May 26, 2015 12:48 pm America/New_York

Christophe,

Almost.  The code released with SeaDAS v7.2 can process HICO with the full spectral resolution.  The hicohs data tree needs to be put in place of the hico data tree for this to work.
It's still a work in progress, so no guarantees on the products it produces.  Little things (like, oh say, water vapor corrections) are not quite up to snuff.  No attempt at calibrating
the bands has been made, so caveat emptor.

Sean

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